Always use EHLO
If this option is selected, the SMTP module always sends the EHLO
command to remote servers, trying to establish the extended SMTP
(ESMTP) protocol.
If this option is not selected, the SMTP module checks the remote
server greeting line. The SMTP module sends the EHLO command only if
this line contains the ESMTP word.

-- snip --

The greetingline of "mail2.hydroone.com" does not contain the ESMTP word.

Regards
Urban

Jeff Wark wrote:

I was just attempting to set the Send Encrypted settings for a specific domain one of our other departments is having trouble sending to.

When I put the domain [hydroone.com] in the box, update it and send a message, I get the following:

It reports that it does not support TLS. But our server just sent the greeting with the 'HELO' string instead of the 'EHLO' string. When I connect manually and present the EHLO string to the other server I get a response indicating that they support the STARTTLS command.

Is our server [5.0.13] behaving incorrectly by not presenting the EHLO command? I remember setting this globally a couple years ago and it seemed to work fine sending emails with TLS.

Thanks.

Jeff Wark
TBayTel Internet

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